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Finding the Fourth Proportional to 83,447.80, 125,010.40 and 46,399.48

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Solution

The fourth proportional to 83,447.80, 125,010.40 and 46,399.48 is: 69,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.80 : 125,010.40 = 46,399.48 : x
  2. Step 2: Convert to fraction form
    83,447.80/125,010.40 = 46,399.48/x
  3. Step 3: Cross multiply
    83,447.80x = 125,010.40 × 46,399.48
  4. Step 4: Simplify right side
    83,447.80x = 5,800,417,554.59
  5. Step 5: Solve for x
    x = 5,800,417,554.59/83,447.80
  6. Step 6: Final answer
    x = 69,509.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.